Calstock (Cornish: Kalstok)is situated in the Deanery and Hundred of East. It is separated on the north and east sides from the Devon parishes of Lamerton, Tavistock and Beer Ferris, by the river Tamar. It is bounded on the south by St Dominick, and on the west by Callington and Stoke Climsland. The parish is named after the old English for a settlement 'stoch' preceded by an unknown word, possibly a personal name. The village is mentioned in the Domesday Book of 1086 as Calestoch. At that time it had land for 12 ploughs; there were 30 villagers and 30 smallholders with 6 ploughs, and 100 acres of woodland.
This was one of the 228 manors that were given to the Earl of Mortain, the brother of William the Conqueror.
Calstock town is situated on the banks of the Tamar. Cotehele House, the ancient seat of the Edgcumbe Family, is in the parish and is a Tudor mansion owned by the National Trust. It once belonging to the Earls of Mount Edgecumbe; this mansion was built by Sir Richard Edgecumbe during the reign of Henry VII. King Charles II, then Prince of Wales, stayed here for a short period in 1645. Cotehele was visited by Queen Victoria and Prince Albert in 1846. It is now a National Trust property.
Besides Calstock town, the chief villages are Gunnislake (where there was a chapel-of-ease), Albaston, Harrabear (now Harrowbarrow), Chilsworthy, Latchley and Metherell. Cruising on the river Tamar is now a popular activity in Calstock.
Most parish and church description(s) on these pages are from Lake's Parochial History of the County of Cornwall by J Polsue (Truro, 1867 - 1873)